After his relegation-struggling side looked like they were heading for a share of the points with the Scottish champions, Dundee manager Jim McIntyre was visibly gutted to lose such a late goal.
With the clock winding down though, referee Bobby Madden added on six minutes at the end and Neil Lennon’s men broke Dee hearts with only seconds to go.
It was a bitter pill for McIntyre to swallow and he still doesn’t quite understand where the whistler got the number from.
Speaking to BBC Sportsound, he said: “It was a real surprise.
“I asked the fourth official, John Beaton, and he explain the referee felt there were three head knocks as well as the substitutes.
“We never seem to get six minutes added on when we are looking for it. I found it strange to say the least.
“I don’t want to make too much of that. In the last two minutes we had a great opportunity and we have to do better.
“Celtic break from that and score.
“We just have to be better in those situations and that’s why we are where we are.
“We’ve given away too many points here because we’ve not shown our ruthlessness.”
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